Boone, Cricstacea, Cruises of "Ara" and "Alva" 279 



fugax A. Milne Edwards and the rare Geryon quinquedens S. I. 

 Smith, from four stations off south Florida, in depths varying 

 from 80, to 100 and 200 fathoms. 



The sessile barnacle, Verruca alba Pilsbry is of exceptional in- 

 terest, the "Alva" series of thirty-five specimens of spines of the 

 sea urchin, Cidar^is ahyssicola (A. Agassiz) from off Sand Key 

 Light, Florida, in 65 and 100 fathoms, being the most extensive 

 collection of this rare and exquisitely sculptured small barnacle 

 recorded. 



CIRRIPEDIA 

 Family: LEPADIDAE 

 Subfamily: Lepadinae 



Lepas anserifera Linne 



■f 



Type: Linne's type is in the museum at Upsala, labelled 

 "Habitat in Pelago Americano." 



Distribution : This species is commonly found pelagic in the 

 temperate and tropic areas of the Atlantic, Pacific and Indian 

 Oceans. 



Material examined: Fifty specimens, attached to the three 

 pens of a very rare Cephalopod mollusk. Sepia smithi Hoyle, 

 found floating, in the Indian Ocean, March, 1929, by the "Ara" 

 World Cruise. 



Discussion: Dr. Charles Darwin's classical presentation of 

 this species, augmented by Dr. H. A. Pilsbry's more recent report 

 on the "Cirripedia Contained in the Collections of the United 

 States National Museum," (1907), which contains exquisite il- 

 lustrations of this species, renders further description unneces- 

 sary. 



References : Lepas anferifera, Linne, C. von, Syst. Nat., 1767, 

 ed. XII, p. 1109. 



Lepas anserifera, Darwin, C, A Monograph of the Sub-class 

 Cirripedia, Vol. I, 1851, TTie Lepadidae, p. 81, pi. 1, fig. 4 

 (with synonymy). — Pilsbry, H. A., Bull. 60, U. S. Nat. Mus., 

 1907, p. 80, pi. 8, figs. 1, 3.— HoEK, P. P. C, Siboga-Expeditie, 

 Cirripedia Pedunculata, Monogr. XXXI-a, 1907, p. 2. 



